/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.kie.kogito.addon.cloudevents.spring;

import java.util.ArrayList;
import java.util.List;

import org.kie.kogito.addon.cloudevents.AbstractTopicDiscovery;
import org.kie.kogito.event.KogitoEventStreams;
import org.kie.kogito.event.Topic;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;

@Component
public class SpringTopicDiscovery extends AbstractTopicDiscovery {

    // in the future we should be implementation agnostic
    @Value(value = "${kogito.addon.cloudevents.kafka." + KogitoEventStreams.INCOMING + "}")
    String incomingStreamTopic;

    @Value(value = "${kogito.addon.cloudevents.kafka." + KogitoEventStreams.OUTGOING + "}")
    String outgoingStreamTopic;

    @Override
    protected List<Topic> getTopics() {
        final List<Topic> topics = new ArrayList<>();

        if (incomingStreamTopic != null && !incomingStreamTopic.isEmpty()) {
            final Topic incoming = DEFAULT_INCOMING_CHANNEL;
            incoming.setName(incomingStreamTopic);
            topics.add(incoming);
        }

        if (outgoingStreamTopic != null && !outgoingStreamTopic.isEmpty()) {
            final Topic outgoing = DEFAULT_OUTGOING_CHANNEL;
            outgoing.setName(outgoingStreamTopic);
            topics.add(outgoing);
        }

        return topics;
    }
}
